java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0930.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:20:46,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:20:46,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:20:46,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 01:20:46,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:20:46,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:20:46,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:20:46,504 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:20:46,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:20:46,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:20:46,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:20:46,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:20:46,511 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:20:46,512 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:20:46,513 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:20:46,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:20:46,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:20:46,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 01:20:46,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 01:20:46,520 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 01:20:46,520 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 01:20:46,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 01:20:46,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 01:20:46,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 01:20:46,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 01:20:46,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:20:46,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:20:46,524 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:20:46,525 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 01:20:46,539 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:20:46,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:20:46,540 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:20:46,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:20:46,541 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:20:46,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:20:46,541 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:20:46,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:20:46,542 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:20:46,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:20:46,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:20:46,542 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:20:46,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:20:46,543 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:20:46,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:20:46,543 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:20:46,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:20:46,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:20:46,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:20:46,544 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:20:46,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:20:46,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:20:46,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:20:46,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:20:46,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:20:46,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:20:46,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:20:46,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:20:46,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:20:46,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:20:46,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:20:46,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:20:46,616 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:20:46,617 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:20:46,617 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0930.c [2019-09-08 01:20:46,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5155a772/557a0e3c8ce24b859cefb5160ee72a05/FLAG2ce6800e7 [2019-09-08 01:20:47,132 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:20:47,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0930.c [2019-09-08 01:20:47,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5155a772/557a0e3c8ce24b859cefb5160ee72a05/FLAG2ce6800e7 [2019-09-08 01:20:47,485 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5155a772/557a0e3c8ce24b859cefb5160ee72a05 [2019-09-08 01:20:47,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:20:47,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:20:47,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:20:47,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:20:47,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:20:47,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f070b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47, skipping insertion in model container [2019-09-08 01:20:47,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,513 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:20:47,537 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:20:47,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:20:47,860 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:20:47,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:20:47,928 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:20:47,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47 WrapperNode [2019-09-08 01:20:47,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:20:47,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:20:47,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:20:47,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:20:47,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,949 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... [2019-09-08 01:20:47,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:20:47,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:20:47,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:20:47,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:20:47,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:20:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:20:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:20:48,032 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2019-09-08 01:20:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log [2019-09-08 01:20:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2019-09-08 01:20:48,033 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:20:48,034 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log [2019-09-08 01:20:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:20:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-08 01:20:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2019-09-08 01:20:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:20:48,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:20:48,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:20:48,503 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:20:48,504 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-09-08 01:20:48,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:20:48 BoogieIcfgContainer [2019-09-08 01:20:48,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:20:48,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:20:48,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:20:48,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:20:48,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:20:47" (1/3) ... [2019-09-08 01:20:48,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1bd7c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:20:48, skipping insertion in model container [2019-09-08 01:20:48,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:20:47" (2/3) ... [2019-09-08 01:20:48,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f1bd7c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:20:48, skipping insertion in model container [2019-09-08 01:20:48,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:20:48" (3/3) ... [2019-09-08 01:20:48,512 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_0930.c [2019-09-08 01:20:48,521 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:20:48,534 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:20:48,551 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:20:48,583 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:20:48,584 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:20:48,584 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:20:48,584 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:20:48,584 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:20:48,584 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:20:48,585 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:20:48,585 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:20:48,585 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:20:48,599 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-09-08 01:20:48,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-08 01:20:48,604 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:20:48,605 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:20:48,607 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:20:48,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:20:48,611 INFO L82 PathProgramCache]: Analyzing trace with hash -1918919043, now seen corresponding path program 1 times [2019-09-08 01:20:48,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:20:48,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:20:48,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:48,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:20:48,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:20:48,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 01:20:48,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:20:48,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 01:20:48,764 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 01:20:48,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 01:20:48,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:20:48,778 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2019-09-08 01:20:48,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:20:48,801 INFO L93 Difference]: Finished difference Result 84 states and 125 transitions. [2019-09-08 01:20:48,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 01:20:48,803 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-09-08 01:20:48,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:20:48,813 INFO L225 Difference]: With dead ends: 84 [2019-09-08 01:20:48,813 INFO L226 Difference]: Without dead ends: 42 [2019-09-08 01:20:48,817 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 01:20:48,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-09-08 01:20:48,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-09-08 01:20:48,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-09-08 01:20:48,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 53 transitions. [2019-09-08 01:20:48,852 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 53 transitions. Word has length 18 [2019-09-08 01:20:48,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:20:48,852 INFO L475 AbstractCegarLoop]: Abstraction has 42 states and 53 transitions. [2019-09-08 01:20:48,853 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 01:20:48,853 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2019-09-08 01:20:48,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 01:20:48,854 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:20:48,854 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:20:48,855 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:20:48,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:20:48,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1513110418, now seen corresponding path program 1 times [2019-09-08 01:20:48,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:20:48,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:20:48,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:48,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:20:48,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:20:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:20:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-08 01:20:48,973 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-08 01:20:49,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:20:49 BoogieIcfgContainer [2019-09-08 01:20:49,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:20:49,021 INFO L168 Benchmark]: Toolchain (without parser) took 1520.87 ms. Allocated memory was 133.2 MB in the beginning and 198.2 MB in the end (delta: 65.0 MB). Free memory was 88.9 MB in the beginning and 115.9 MB in the end (delta: -27.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:49,022 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 01:20:49,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.81 ms. Allocated memory was 133.2 MB in the beginning and 198.2 MB in the end (delta: 65.0 MB). Free memory was 88.7 MB in the beginning and 172.4 MB in the end (delta: -83.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:49,024 INFO L168 Benchmark]: Boogie Preprocessor took 50.18 ms. Allocated memory is still 198.2 MB. Free memory was 171.8 MB in the beginning and 169.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:49,025 INFO L168 Benchmark]: RCFGBuilder took 525.30 ms. Allocated memory is still 198.2 MB. Free memory was 169.3 MB in the beginning and 143.4 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:49,026 INFO L168 Benchmark]: TraceAbstraction took 511.95 ms. Allocated memory is still 198.2 MB. Free memory was 142.8 MB in the beginning and 115.9 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-08 01:20:49,030 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 107.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 428.81 ms. Allocated memory was 133.2 MB in the beginning and 198.2 MB in the end (delta: 65.0 MB). Free memory was 88.7 MB in the beginning and 172.4 MB in the end (delta: -83.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 50.18 ms. Allocated memory is still 198.2 MB. Free memory was 171.8 MB in the beginning and 169.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 525.30 ms. Allocated memory is still 198.2 MB. Free memory was 169.3 MB in the beginning and 143.4 MB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 511.95 ms. Allocated memory is still 198.2 MB. Free memory was 142.8 MB in the beginning and 115.9 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 150]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 149, overapproximation of bitwiseOr at line 59, overapproximation of someBinaryArithmeticDOUBLEoperation at line 60. Possible FailurePath: [L32-L41] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] static const double zero = 0.0; VAL [\old(Lg1_log)=4294967310, \old(Lg2_log)=4294967313, \old(Lg3_log)=4294967296, \old(Lg4_log)=4294967299, \old(Lg5_log)=4294967301, \old(Lg6_log)=4294967308, \old(Lg7_log)=4294967305, \old(ln2_hi_log)=4294967298, \old(ln2_lo_log)=4294967302, \old(two54_log)=4294967309, \old(zero)=4294967311, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L144] double x = 1.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=1, zero=0] [L146] CALL, EXPR __ieee754_log(x) VAL [\old(x)=1, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L46] double hfsq, f, s, z, R, w, t1, t2, dk; [L47] __int32_t k, hx, i, j; [L48] __uint32_t lx; VAL [\old(x)=1, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=1, zero=0] [L51] ieee_double_shape_type ew_u; [L52] ew_u.value = (x) [L53] EXPR ew_u.parts.msw [L53] (hx) = ew_u.parts.msw [L54] EXPR ew_u.parts.lsw [L54] (lx) = ew_u.parts.lsw [L57] k = 0 VAL [\old(x)=1, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=16, two54_log=18014398509481984, x=1, zero=0] [L58] COND TRUE hx < 0x00100000 VAL [\old(x)=1, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=16, two54_log=18014398509481984, x=1, zero=0] [L59] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L60] return -two54_log / zero; VAL [\old(x)=1, hx=-1, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=16, two54_log=18014398509481984, x=1, zero=0] [L146] RET, EXPR __ieee754_log(x) VAL [__ieee754_log(x)=4294967300, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=1, zero=0] [L146] double res = __ieee754_log(x); [L149] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=4294967300, res == 0.0 && __signbit_double(res) == 0=0, two54_log=18014398509481984, x=1, zero=0] [L149] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L150] __VERIFIER_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=4294967300, two54_log=18014398509481984, x=1, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 52 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...